1 - 20 of 260 Works in Alternate Universe - Undertail (Undertale)

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  1. Tags
    Summary

    My first time doing Kinktober. Oh boy. Rest assured, this will not be organized. I'm flying by the seat of my pants, as usual.

    Language:
    English
    Words:
    38,004
    Chapters:
    19/31
    Comments:
    282
    Kudos:
    318
    Bookmarks:
    43
    Hits:
    10010
  2. Tags
    Summary

    Your name is unimportant. Your job is nonexistent, really. And your (ex)roommate just kicked you out in the middle of a surprisingly cold November night. But whatever. You don't care. You'll be fine.

    Keep telling yourself that as you freeze to death, idiot.

    But you'll be fine, for one reason! Two, actually. Two people - monsters really - who just so happen to have the same names as some fonts you know of? You stay with them instead, just to get back on your feet, and a single question rises to your mind.

    What the hell is keeping you here?

    (Explicit chapters marked with ***. Explicit chapter count: 1)

    Series
    Language:
    English
    Words:
    110,953
    Chapters:
    34/?
    Comments:
    432
    Kudos:
    692
    Bookmarks:
    118
    Hits:
    11917
  3. Tags
    Summary

    ATTL-inspired; Red finally gets the stain out of Sans' hoodie, ending up bareboned and wearing it deliberately when Edge gets home. He offers Edge a taste of Sans, and struggles with intimacy he knows his brother craves from him.

    Language:
    English
    Words:
    4,422
    Chapters:
    1/1
    Comments:
    17
    Kudos:
    79
    Bookmarks:
    12
    Hits:
    465
  4. Tags
    Summary

    All your life, all you have known were the stares and whispers of others. You were never one to fit in with the rest of a crowd, always stood out like a sore thumb. You could never slip by unnoticed, never avoid their eyes. Your wings made that impossible.

    Luckily, your pun-derful boyfriend knows exactly what that feels like.

    Series
    Language:
    English
    Words:
    7,805
    Chapters:
    1/1
    Comments:
    6
    Kudos:
    47
    Bookmarks:
    5
    Hits:
    513
  5. Tags
    Summary

    All the main characters have a big orgy featuring sans the skeleton who makes 13 year olds horny

    Series
    Language:
    English
    Words:
    500
    Chapters:
    2/2
    Comments:
    12
    Kudos:
    36
    Hits:
    1986
  6. Tags
    Summary

    You're just a shy lil transboy who happens to be living under the care and comfort of a certain fluffy lich Monster. He's taken the role of your Daddy, in everything regarding your life. Not that you mind.

    Language:
    English
    Words:
    7,061
    Chapters:
    4/4
    Kudos:
    40
    Bookmarks:
    2
    Hits:
    796
  7. Tags
    Summary

    Based off Amortem-Kun's alternate streetfell universes. Fellswap Pap is a slave trafficker, and Black's decided to teach him why slave trafficking is a really stupid idea.

    Commissioned by Askellie.

    (goddammit A03, let me embed links. Fine, here's the reference: https://amortem-kun.tumblr.com/post/165596718980/soloshikigami-mercy-run-amortem-kun-hope)

    Language:
    English
    Words:
    11,107
    Chapters:
    4/4
    Collections:
    1
    Comments:
    49
    Kudos:
    127
    Bookmarks:
    18
    Hits:
    2029
  8. Tags
    Summary

    I wanted to create a place to put all of my plot bunnies!
    I may or may not write any of them, BUT I will add to them if I come up with more ideas.
    If any of you want to use them, you totes can just ask first! Oh! and link me to the fic!!!
    I write mostly Gen fics, so....yeah sorry of you want romance bunnies...
    I also write xreader fics! Again, it's mostly gen so TAT sorry again.
    Anyway~ thank you for checking out my plot bunnies!

    Language:
    English
    Words:
    2,304
    Chapters:
    6/?
    Kudos:
    3
    Hits:
    61
  9. Tags
    Summary

    sans undertale cucks you

    Language:
    English
    Words:
    757
    Chapters:
    1/1
    Comments:
    7
    Kudos:
    10
    Hits:
    248
  10. Tags
    Summary

    努力改过自新的黑福在洗心革面的路途中遇到的小插曲。【沙雕欢脱向】
    有一句话的鱼龙。

    Language:
    中文
    Words:
    10,441
    Chapters:
    1/1
    Kudos:
    14
    Hits:
    781
  11. Tags
    Summary

    What starts off as a massage for Grillby turns into a display of every loving gesture Sans can think of. It's a good thing he's got a hand for every one.

    Language:
    English
    Words:
    7,000
    Chapters:
    1/1
    Comments:
    16
    Kudos:
    59
    Bookmarks:
    5
    Hits:
    689
  12. Tags
    Summary

    Cash doesn't have time for angry customers when there is fucking to be done.

    Language:
    English
    Words:
    1,039
    Chapters:
    1/1
    Kudos:
    7
    Hits:
    117
  13. Tags
    Summary

    Papyrus goes into heat and nearly dusts his brother in the process. Reflecting back on how he has treated Sans. Papyrus becomes determined to set things right and get his brother to open back up again but he struggles with toning down his aggressive behaviors. Sans rebukes most of Papyrus' attempts and struggles with his mental instability due to the resets and lack of self worth.

    Rewrite the summary since quite a few people mistook the previous summary to mean Papyrus was abusive in the story. That's the opposite of what I am trying to accomplish with this fanfic.

    Language:
    English
    Words:
    55,124
    Chapters:
    35/?
    Comments:
    682
    Kudos:
    1486
    Bookmarks:
    159
    Hits:
    27546
  14. Tags
    Summary

    So this is my first work for the Undertale fandom. This will be filled with my drabble for my golden boy Papyrus. Each chapter may be different Papyrus and will have trigger warnings in the notes.

    Series
    Language:
    English
    Words:
    687
    Chapters:
    1/?
    Comments:
    2
    Kudos:
    8
    Hits:
    85
  15. Tags
    Summary

    Sans drops a hint that he's into Red's brother. Red and he are already something. Thing is, Red's pretty good at getting what he wants. And boy, does he want to help.

    Language:
    English
    Words:
    13,681
    Chapters:
    2/2
    Comments:
    57
    Kudos:
    194
    Bookmarks:
    44
    Hits:
    1919
  16. Tags
    Language:
    English
    Words:
    7,370
    Chapters:
    3/3
    Comments:
    11
    Kudos:
    34
    Bookmarks:
    3
    Hits:
    1071
  17. Tags
    Summary

    This is a story i made to about my oc neiko this is his story from his beginnings to where we are now and where id like it to go from the moment of meeting his now friends. things are not as of yet full on cannon but i will be speaking with my friend to see where we take him.
    other oc characters (paprika, boisen & dewly) are owned by @smileybonez on twitter.

    Language:
    English
    Words:
    2,581
    Chapters:
    1/5
    Comments:
    1
    Kudos:
    5
    Bookmarks:
    2
    Hits:
    61
  18. Tags
    Summary

    Applying kegels to souls is generally not Sans' idea of a good time. Red convinces him otherwise.

    Language:
    English
    Words:
    6,772
    Chapters:
    2/2
    Comments:
    54
    Kudos:
    184
    Bookmarks:
    20
    Hits:
    1918
  19. Tags
    Summary

    A disaster of a timeline where Bucky's Stretch and Sai's Loki find themselves merged into one body. This spells disaster for the girls and the toll that it takes on their friendship. Both trying to avoid hurting the other, but finding in trying to be selfless that it only ends in more hurt.

    Two unlikely allies join forces to help sort the mess that makes up this timeline.

    Language:
    English
    Words:
    4,968
    Chapters:
    1/1
    Comments:
    2
    Kudos:
    3
    Hits:
    29
  20. Tags
    Summary

    The now adult Frisk is suffering from nightmares about the day she defeated Asriel and failed to save him from turning into the evil Flowey once more. Once she tells her worries to her closest friend, Sans, they develop an idea to stop the nightmares once and for all: return to the monster world and retrieve flowey in hopes that Alphys can return him back into his real self. In the meantime, Sans and Frisk grow closer and closer and develop new feelings for each other.

    Language:
    English
    Words:
    160,527
    Chapters:
    66/66
    Comments:
    776
    Kudos:
    1025
    Bookmarks:
    84
    Hits:
    30411

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